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Arthur J. Gallagher & Co.

AJG
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
SEC CIK
0000354190

In the last 90 days, Arthur J. Gallagher & Co. insiders filed 0 open-market purchases and 4 sales; 1,295 institutions reported holding it in 13F filings for Q2 2026, worth $54.7B in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in Arthur J. Gallagher & Co. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,295
+58 vs. Q1 2026
Shares held
238.5M
+10.9M (+4.8%) vs. Q1 2026
Total value
$54.7B
+$5.48B (+11.1%) vs. Q1 2026
New holders
164
464 more added
Sold out
106
483 more reduced

11 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AJG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 1,295 institutions
Q1 2021: 732 institutionsQ2 2021: 779 institutionsQ3 2021: 775 institutionsQ4 2021: 854 institutionsQ1 2022: 817 institutionsQ2 2022: 823 institutionsQ3 2022: 865 institutionsQ4 2022: 921 institutionsQ1 2023: 951 institutionsQ2 2023: 976 institutionsQ3 2023: 999 institutionsQ4 2023: 1,082 institutionsQ1 2024: 1,130 institutionsQ2 2024: 1,153 institutionsQ3 2024: 1,203 institutionsQ4 2024: 1,325 institutionsQ1 2025: 1,360 institutionsQ2 2025: 1,380 institutionsQ3 2025: 1,342 institutionsQ4 2025: 1,299 institutionsQ1 2026: 1,248 institutionsQ2 2026: 1,295 institutions
Value heldQ2 2026: $54.7B
Q1 2021: $20.6BQ2 2021: $24.6BQ3 2021: $26.3BQ4 2021: $30.1BQ1 2022: $31.0BQ2 2022: $29.1BQ3 2022: $31.2BQ4 2022: $34.1BQ1 2023: $34.7BQ2 2023: $39.9BQ3 2023: $42.3BQ4 2023: $41.9BQ1 2024: $46.5BQ2 2024: $49.1BQ3 2024: $52.8BQ4 2024: $65.9BQ1 2025: $79.0BQ2 2025: $72.9BQ3 2025: $69.7BQ4 2025: $60.6BQ1 2026: $49.7BQ2 2026: $54.7B
Institutions holding AJG and their total value by quarter
QuarterHoldersValue
Q2 20261,295$54.7B
Q1 20261,248$49.7B
Q4 20251,299$60.6B
Q3 20251,342$69.7B
Q2 20251,380$72.9B
Q1 20251,360$79.0B
Q4 20241,325$65.9B
Q3 20241,203$52.8B
Q2 20241,153$49.1B
Q1 20241,130$46.5B
Q4 20231,082$41.9B
Q3 2023999$42.3B
Q2 2023976$39.9B
Q1 2023951$34.7B
Q4 2022921$34.1B
Q3 2022865$31.2B
Q2 2022823$29.1B
Q1 2022817$31.0B
Q4 2021854$30.1B
Q3 2021775$26.3B
Q2 2021779$24.6B
Q1 2021732$20.6B

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Arthur J. Gallagher & Co.; share changes are against Q1 2026.

Institutions holding AJG in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
GWM Advisors LLC33,623$7.72M0.02%−4,602−12.0%Reduced
Assenagon Asset Management S.A.33,610$7.72M0.01%−28,670−46.0%Reduced
CAPROCK Group, Inc.33,354$7.66M0.15%+33,354New
Public Employees Retirement Association of Colorado33,194$7.62M0.03%−50−0.2%Reduced
Bath Savings Trust Co32,678$7.50M0.78%−2,014−5.8%Reduced
Smithbridge Asset Management Inc32,662$7.50M1.02%+115+0.4%Added
JustInvest LLC32,250$7.40M0.06%+4,651+16.9%Added
O'Shaughnessy Asset Management, LLC32,026$7.35M0.03%−1,984−5.8%Reduced
Oregon Public Employees Retirement Fund31,589$7.25M0.08%+2,137+7.3%Added
EagleClaw Capital Managment, LLC31,285$7.18M0.96%+8,985+40.3%Added
Seizert Capital Partners, LLC30,920$7.10M0.29%+8,382+37.2%Added
Rockefeller Capital Management L.P.30,798$7.07M0.01%+25+0.1%Added
North Star Investment Management Corp.30,382$6.97M0.38%00.0%Unchanged
Strategy Asset Managers LLC30,362$6.97M1.04%+642+2.2%Added
Empowered Funds, LLC30,340$6.97M0.04%+5,050+20.0%Added
James Hambro & Partners29,250$6.71M0.24%+29,250New
Mackenzie Financial Corp28,960$6.65M0.01%−424−1.4%Reduced
PFA Pension, Forsikringsaktieselskab28,937$6.64M0.02%+1,465+5.3%Added
Dockside LLC28,905$6.64M1.55%+28,905New
Ethic Inc.28,859$6.63M0.08%+4,609+19.0%Added
UniSuper Management Pty Ltd28,671$6.58M0.03%+5,733+25.0%Added
OP Asset Management Ltd28,322$6.50M0.07%+2,167+8.3%Added
Nordea Investment Management AB28,678$6.50M0.01%−550−1.9%Reduced
Bahl & Gaynor Inc27,969$6.42M0.03%−1,295−4.4%Reduced
Ayrshire Capital Management LLC27,328$6.27M2.94%+319+1.2%Added
Taikang Asset Management (Hong Kong) Co Ltd27,269$6.26M0.57%−40,815−59.9%Reduced
Bank of Nova Scotia27,018$6.20M0.01%−8,765−24.5%Reduced
Sigma Investment Counselors Inc26,902$6.18M0.30%−4,349−13.9%Reduced
Mutual of America Capital Management LLC26,457$6.07M0.06%−876−3.2%Reduced
Federation des caisses Desjardins du Quebec26,321$6.04M0.02%−157,706−85.7%Reduced
Torray LLC26,276$6.03M0.81%−2,759−9.5%Reduced
Capital Group Private Client Services, Inc.25,919$5.95M0.08%−3,880−13.0%Reduced
TriCert Investment Counsel Inc.25,509$5.86M0.55%+25,509New
Marks Group Wealth Management, Inc25,435$5.84M0.51%−4,524−15.1%Reduced
Geneos Wealth Management Inc.25,149$5.77M0.12%+533+2.2%Added
Cane Capital Partners, LLC24,930$5.72M2.30%−540−2.1%Reduced
Mirae Asset Global ETFs Holdings Ltd.24,774$5.69M0.01%−85−0.3%Reduced
Brant Point Investment Management LLC24,730$5.68M1.26%−1,637−6.2%Reduced
Yousif Capital Management, LLC24,727$5.68M0.06%−1,729−6.5%Reduced
Ensign Peak Advisors, Inc24,633$5.65M0.01%+866+3.6%Added
Macquarie Group Ltd24,523$5.63M0.02%+2,905+13.4%Added
Fulcrum Asset Management LLP24,583$5.58M0.56%+17,026+225.3%Added
Concurrent Investment Advisors, LLC24,267$5.57M0.05%+13,666+128.9%Added
Avanza Fonder AB24,193$5.55M0.12%00.0%Unchanged
Marex Group plc24,001$5.51M0.04%+24,001New
Freedom Day Solutions, LLC23,813$5.47M1.21%+23,813New
Polar Asset Management Partners Inc.23,100$5.30M0.10%+4,100+21.6%Added
TD Waterhouse Canada Inc.22,035$5.29M0.01%+216+1.0%Added
Colonial Trust Co22,938$5.27M0.67%+40+0.2%Added
Captrust Financial Advisors22,868$5.25M0.01%−16,325−41.7%Reduced
Prospera Financial Services Inc22,839$5.24M0.08%−1,089−4.6%Reduced
Susquehanna International Group, LLP22,804$5.24M0.00%+7,004+44.3%Added
Schwab Charitable Fund22,700$5.21M0.12%−1,590−6.5%Reduced
Chicago Partners Investment Group LLC21,473$5.20M0.10%+61+0.3%Added
Hantz Financial Services, Inc.22,573$5.18M0.07%−917−3.9%Reduced
Cary Street Partners Financial LLC22,323$5.12M0.11%+716+3.3%Added
Element Capital Management LLC22,200$5.10M0.28%+22,200New
Cambridge Investment Research Advisors, Inc.21,967$5.04M0.01%+572+2.7%Added
Advisor Group Holdings, Inc.21,922$5.04M0.01%−5,596−20.3%Reduced
Douglass Winthrop Advisors, LLC21,475$4.93M0.09%−2,421−10.1%Reduced
Rothschild Investment LLC21,255$4.88M0.18%+19,487+1,102.2%Added
Elo Mutual Pension Insurance Co21,083$4.84M0.06%+2,122+11.2%Added
Sit Investment Associates Inc20,993$4.82M0.09%−35,275−62.7%Reduced
Atria Investments LLC20,780$4.77M0.05%+3,751+22.0%Added
Reuter James Wealth Management, LLC20,761$4.77M0.63%−261−1.2%Reduced
Wendell David Associates Inc20,660$4.74M0.50%−504−2.4%Reduced
Ieq Capital, LLC20,527$4.71M0.02%−71−0.3%Reduced
Candriam Luxembourg S.C.A.20,428$4.69M0.02%−214−1.0%Reduced
Callan Family Office, LLC20,355$4.67M0.09%+43+0.2%Added
BNP Paribas20,452$4.67M0.13%−6,302−23.6%Reduced
Mizuho Securities USA LLC20,112$4.62M0.07%+4,577+29.5%Added
Family Legacy, Inc.19,951$4.58M1.22%−90.0%Reduced
Cresset Asset Management, LLC19,882$4.56M0.02%+13,512+212.1%Added
M&T Bank Corp19,828$4.55M0.01%−2,411−10.8%Reduced
Gulf International Bank (UK) Ltd19,494$4.47M0.09%−295−1.5%Reduced
New Vernon Investment Management LLC19,403$4.45M5.46%+5,895+43.6%Added
Westwood Holdings Group Inc.19,361$4.44M0.03%−149,753−88.6%Reduced
Atlantic Union Bankshares Corp19,337$4.44M0.07%−109−0.6%Reduced
Pacer Advisors, Inc.19,167$4.40M0.01%−1,003−5.0%Reduced
B. Metzler seel. Sohn & Co. AG19,123$4.39M0.04%+6,594+52.6%Added
McLean Asset Management Corp17,408$4.34M0.57%+7,022+67.6%Added
Financiere des Professionnels - Fonds d,investissement inc.18,854$4.33M0.24%−538−2.8%Reduced
First American Bank18,679$4.29M0.24%+233+1.3%Added
Ariel Investments, LLC18,597$4.27M0.04%−1,167−5.9%Reduced
Nomura Holdings Inc18,572$4.26M0.02%+11,860+176.7%Added
Moore Capital Management, LP18,504$4.25M0.10%+18,504New
Principal Securities, Inc.18,196$4.18M0.05%+9,047+98.9%Added
RSM US Wealth Management LLC18,137$4.16M0.05%+5,051+38.6%Added
Saudi Central Bank17,997$4.13M0.05%+8,518+89.9%Added
Fideuram Asset Management (Ireland) dac19,287$4.10M0.08%+19,287New
Steward Partners Investment Advisory, LLC17,813$4.09M0.02%+10,718+151.1%Added
American Century Companies Inc17,515$4.02M0.00%−263,002−93.8%Reduced
Eurizon Capital SGR S.p.A.17,512$4.02M0.01%+762+4.5%Added
Cullinan Associates Inc17,500$4.02M0.30%+17,500New
Sanctuary Advisors, LLC17,311$3.97M0.02%+658+4.0%Added
First Manhattan Co17,309$3.97M0.01%−1,151−6.2%Reduced
Community Trust & Investment Co17,288$3.97M0.20%+256+1.5%Added
Sand Hill Global Advisors, LLC17,197$3.95M0.12%−1,485−7.9%Reduced
Sitrin Capital Management LLC17,138$3.93M1.74%−50.0%Reduced
WCG Wealth Advisors LLC16,934$3.89M0.09%+16,934New